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- In the each stage of the cotton growth remnant of soil nitrate nitrogen was higher, but loss of apparent budget of soil nitrate was higher only in the seedling stage and the beginning of bell stage. 棉花生长发育的各个时期土壤硝态氮的残留都很高,但仅在苗期、初铃期表观损失较高。
- Ye Y L,Li L,Sun J H,Zhang F S.Effect of root separation on pl ant nitrogen uptake and soil nitrate nitrogen residual in faba bean/maize intercropping[J].J.Soi1 Water Conserv.,2005,19(3):13-17. [19]叶优良;李隆;孙建好;张福锁.;地下部分隔对蚕豆/玉米间作氮素吸收和土壤硝态氮残留影响[J]
- Effect of Irrigation and Precipitation on Soil Nitrate Nitrogen Accumulation 灌溉与降水对土壤NO_3~--N累积的影响
- Effects of different fertilizer application countermeasures on the soil nitrate nitrogen accumulation in dryland maize 不同施肥措施对旱地玉米土壤硝态氮累积的影响
- The dynamics of soil nitrate nitrogen leaching and contamination of the groundwater in high-yield farmland 高产农田土壤硝态氮淋失与地下水污染动态研究
- Influence of Subirrigation Pipe Depth on Soil Nitrate Nitrogen in Protected Field for Tomato Cultivation 渗灌管埋深对土壤硝态氮含量的影响
- Keywords DMPP;3;5-dimethylpyrazole phosphate;Nitrification inhibitor;Soil ammonium nitrogen;Soil nitrate nitrogen; 二甲基吡唑磷酸盐;硝化抑制剂;土壤铵态氮;土壤硝态氮;
- soil nitrate nitrogen 土壤硝态氮
- Based on the long-term field experiments, the relationships between soil nitrogen balance, nitrogen utilization efficiency (NUE) and soil nitrate were studied. 摘要 利用长期肥料试验资料研究了土壤氮素平衡、氮肥利用率和土壤硝态氮之间的相互关系。
- Some commercial laboratories use periodic nitrate nitrogen tests as guides. 许多商业性的试验室已应用定期的硝态氮分析作为指导。
- This paper reports the effect of DCD in seedling stage to soil microorganism of bacteria,mold and actinomycetes,and the concentration changes of both ammonium nitrogen and nitrate nitrogen in soil. 实验研究了双氰胺在玉米苗期对土壤微生物细菌、霉菌和放线菌的影响,及对土壤中铵态氮和硝态氮贮量变化的影响。
- In many plants, including most tree crops, nitrate nitrogen does not usually occur in the leaves. 在一些植物中,包括绝大多数的木本作物,硝态氮并非经常存在于叶片中。
- Nitrate nitrogen removal from ground water by autotrophic denitrification in a packed bed reactor. 固定床自养反硝化去除地下水中的硝酸盐氮。
- We got the relative compound standard indeterminacy of nitrate nitrogen content in water,8. 采用酚二磺酸分光光度法对水中硝酸盐氮进行不确定度评定。
- Rhoads F M.A comparison of ammonium and nitrate nitrogen for cigar wrapper tobacco[J],Agron.J. 李智勇;刘思英;丁一;等.;氮肥种类和形态对烤烟生育及产质的影响[J]
- The same result was observed under hydroponic condition with nitrate nitrogen in which glutamate or serine was added. 水培条件下,以铵态氮或尿素等作唯一氮源时,荞麦中草酸含量远低于以硝态氮培养的;
- BELANGER G,ZIADI N,WALSH J R,RICHARDS J E,MILBURN P H.Residual soil nitrate after potato harvest[J].Journal of Environmental Quality,2003,32:607-612. 郭胜利党廷辉郝明德.;黄土高原沟壑区沟坡地土壤剖面中矿质氮的分布特征[J]
- Li W Q,Zhang M,Li H F,Zan L S.The study of soil nitrate status in fields under plastic house gardening[J].Acta Pedologica Sinica,2002,39(2):283-287. [9]李文庆;张民;李海峰;昝林生.;大棚土壤硝酸盐状况研究[J]
- Blanched gourd did not show such a pattern.Low temperature storage appeared to be favorable for the control of nitrate nitrogen in veg... 低温处理有利于控制蔬菜中硝态氮的含量,但对可溶性总糖含量的影响却较小。
- In order to establish an easy,rapid and practical method of determination of nitrate nitrogen in quality controlled water,thymol was applied. 用麝香草酚法测定水中硝酸盐氮,并与标准方法酚二磺酸法进行对照,所测结果经统计学处理,两种方法无显著性差异,精密度、准确度等各项指标符合分析标准。